Home / 1,279,444.60-1,919,858.10-531,566.20

Finding the Fourth Proportional to 1,279,444.60, 1,919,858.10 and 531,566.20

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Solution

The fourth proportional to 1,279,444.60, 1,919,858.10 and 531,566.20 is: 797,636.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,444.60 : 1,919,858.10 = 531,566.20 : x
  2. Step 2: Convert to fraction form
    1,279,444.60/1,919,858.10 = 531,566.20/x
  3. Step 3: Cross multiply
    1,279,444.60x = 1,919,858.10 × 531,566.20
  4. Step 4: Simplify right side
    1,279,444.60x = 1,020,531,674,756.22
  5. Step 5: Solve for x
    x = 1,020,531,674,756.22/1,279,444.60
  6. Step 6: Final answer
    x = 797,636.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.